Chamber location method
First Claim
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1. A method of locating a catheter having a location electrode in an endocardial cavity, the method comprising the steps of:
- a) positioning an electrode array within the endocardial cavity;
b) positioning the catheter within the endocardial cavity;
c) supplying an electric pulse to the location electrode;
d) receiving at the electrode array the voltage relating to the electric pulse;
distinguishing the received voltage relating to the electric pulse from any voltage relating to other electrical activity; and
e) performing field theory calculations upon voltage data received from said electrode array to determine the location of the location electrode within the endocardial cavity.
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Abstract
A system for mapping electrical activity of a patient'"'"'s heart. The system includes a set of electrodes spaced from the heart wall and a set of electrodes in contact with the heart wall. Voltage measurements from the electrodes are used to generate three-dimensional and two-dimensional maps of the electrical activity of the heart.
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Citations
10 Claims
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1. A method of locating a catheter having a location electrode in an endocardial cavity, the method comprising the steps of:
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a) positioning an electrode array within the endocardial cavity;
b) positioning the catheter within the endocardial cavity;
c) supplying an electric pulse to the location electrode;
d) receiving at the electrode array the voltage relating to the electric pulse;
distinguishing the received voltage relating to the electric pulse from any voltage relating to other electrical activity; and
e) performing field theory calculations upon voltage data received from said electrode array to determine the location of the location electrode within the endocardial cavity. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method of locating a catheter having a location electrode in a body cavity, the method comprising the steps of:
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a) positioning the location electrode of the catheter within the body cavity;
b) supplying an electric pulse to the location electrode;
c) receiving at a plurality of mapping electrodes the voltage relating to the electric pulse; and
d) performing calculations to determine the location of the location electrode using the received voltages. - View Dependent Claims (8, 9, 10)
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Specification